Chains and heterogens:
PDB Chain Sequences:
>1a5y_ (-) memekefeqidksgswaaiyqdirheasdfpcrvaklpknknrnryrdvspfdhsriklh qedndyinaslikmeeaqrsyiltqgplpntcghfwemvweqksrgvvmlnrvmekgslk caqywpqkeekemifedtnlkltlisediksyytvrqlelenlttqetreilhfhyttwp dfgvpespasflnflfkvresgslspehgpvvvhcsagigrsgtfcladtclllmdkrkd pssvdikkvlldmrkfrmgliataeqlrfsylaviegakfimgdssvqdqwkelshedle pppehipppprppkrilephngkcreffpn
>1a5y_ (-) emekefeqidksgswaaiyqdirheasdfpcrvaklpknknrnryrdvspfdhsriklhq edndyinaslikmeeaqrsyiltqgplpntcghfwemvweqksrgvvmlnrvmekgslkc aqywpqkeekemifedtnlkltlisediksyytvrqlelenlttqetreilhfhyttwpd fgvpespasflnflfkvresgslspehgpvvvhcsagigrsgtfcladtclllmdkrkdp ssvdikkvlldmrkfrmgliataeqlrfsylaviegakfimgds